I'm creating a script that an admin have to set the interval of minutes to choose . Like 2 by 2, 3 by 3 and so on..
I decided to create a field called "hour" and a field called "minutes" as a string format
In this script, the user have to select the hour and minutes that he started to do a task, and the hour and minutes that he finalized the task, and a briefing of he did in that time.
I have to make a math expression to calculate how much hours he worked in the task. If it were data/time field , it would be very easy to do it.. but they are string fields.. does anyone has any suggestion ??
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